Low transition noise sputtered tape media that can be deposited at room temperature on polymer substrates will have a major impact on the future of tape storage and is the subject of active research [1]. CoCrPt-SiO{sub}2 perpendicular media fabricated without heating has been shown to produce fine grains that are decoupled by SiO{sub}2 at the grain boundaries, leading to low noise performance in disk drive media [2]. This approach is appealing for longitudinal tape media because it works well with no heating, in contrast to the Cr segregation mechanism. In this study, the recording performance of CoCrPt-SiO{sub}2 and CoPt-SiO{sub}2 tape media were investigated.
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